Cocreate
CoCreate Modeling Personal Edition v.3.0
If you have read about explicit, geometry-based 3D CAD, you know it is the best approach for creating flexible, lightweight designs. Now, PTC brings you a free download from the CoCreate product family - CoCreate Modeling Personal Edition,
SplitWorks 2009 v.1 3
Features of SplitWorks 2009 : Preview of disjointed sets of faces within a SplitWorks Feature Manager group folder facilitating the creation of knitted surfaces.
Creo Elements/Direct Modeling Express v.4.0
If you have read about direct modeling, you know it is the best approach for rapid creating flexible 3D designs.